Pressure Leak Test - TESTO 570 Series Instruction Manual

7 Using the product

The Evacuation
is displayed.
7
Start measurement: Press the
-
Once the measuring range 0 to
20,000 microns / 0 to 26.66 mbar is
reached, the current vacuum value is
shown on the instrument display.
The instrument also displays the
current ambient temperature, the
water evaporation temperature which
corresponds to the vacuum reading,
and the delta between these two
temperatures.
8
End measurement: Press the

The measurement result is displayed.
Press the
test can also be started again.
9
[Menu/Enter]
Press
7.2.3

Pressure Leak Test

The temperature compensated leakage test can be used to check the leak
tightness of systems. For this purpose both the system pressure and the
ambient temperature are measured over a defined period of time.
To this end, a temperature probe that measures the ambient
temperature or a Smart Probe for measuring the air temperature can be
connected. As a result, information is provided about the temperature-
compensated differential pressure and about the temperature at the
beginning/end of the test. Due to the temperature compensation, the
24
measurement menu
[▲] New
key to reset the determined values. If necessary, a
to return to the main menu.
[▼] (Start)
key.
[▼] (Stop)
key.